baber/WOPTO huggingface dataset:
Patent JP-S63257278-A (JP)
Title: Field-effect transistor
Inventor: KUBOTA SUSUMU
IPC: H01L21/338
Filed: 1987-04-14
Abstract: PURPOSE:To obtain a field-effect transistor whose chip is small-sized by a method wherein one facing side each of a source electrode and a drain electrode and both facing sides of a gate electrode facing these electrodes are shaped to be wavelike curves which repeat an identical form continuously so that the gate electrode can be miniaturized. CONSTITUTION:One facing side each of a source electrode 5a and a drain electrode 4a and both facing sides of a gate electrode 3a facing these electrodes are shaped to be wavelike curves which repeat an identical form continuously; the gate electrode 3a and the source electrode 5a and the drain electrode 4a are spaced at mutually definite intervals. By this setup, even when a gate width w is reduced by about 10%, the operating characteristics including the high-frequency characteristics of a GaAs FET can be maintained to be almost equal to those of a conventional GaAs FET. In addition, instead of sinusoidal curves the shape of the sides of the gate width may be formed in such a way that semicircular protruding parts and semicircular recessed parts continue alternately so that an electric field becomes uniform.
Patent JP-H08284428-A (JP)
Title: Method for repairing existing steel frame material
Inventor: TAKAHASHI YASUHIKO
IPC: E04G23/02
Filed: 1995-04-18
Abstract: PURPOSE: To enable the partial repair independently of the deformation condition of a damaged part, and to easily and surely secure the initial strength of the steel frame material. CONSTITUTION: A web 10a and a flange 10b of a damaged part 12 are cut into the rectangular shape for elimination (damaged part cutting process). A substitutional material having the T-shaped cross section, which is formed by integrally forming a part corresponding to the web and a part corresponding to the flange with each other, is provided in the damaged part 12. The substitutional material is fitted in the notch part 22, in which the damaged part 12 is cut for elimination, and the part corresponding to the web is welded to the web 10a side of the steel frame beam 10, and the part corresponding to the flange is welded to one flange 10c side of the steel frame beam 10.
Patent JP-H02271399-A (JP)
Title: Noise reducing device
Inventor: YAMAMOTO HIROSHI
IPC: B60R16/02
Filed: 1989-04-12
Abstract: PURPOSE:To obtain the noise reducing device which is used suitably for a released mechanical structure by detecting the vibration of the structure, controlling a driving power source and outputting required phase vibration from a magnetostrictive material vibrator and thus reducing noises. CONSTITUTION:A detector 20 detects the vibration of the structure 10, and the driving power source 40 is controlled through a controller 30 according to the detection result to drive the magnetostrictive material vibrator 50. Consequently, the vibrator 50 vibrates the structure in half-wavelength phase shift relation with the vibration wavelength of the structure to suppress the vibration of the structure, thereby reducing vibration noises. The noise reducing device which is used suitably for the released mechanical structure is obtained by the simple structure which is small in occupation space.
Patent JP-H03290546-A (JP)
Title: Magnetic shielding material and magnetic shield room structure therewith
Inventor: KUROSAKI YUKIO
IPC: E04B1/92
Filed: 1990-04-07
Abstract: PURPOSE:To eliminate any contamination due to the penetration of outside air by maintaining an in-and-out pressure differential in the shape of positive pressure, on both wall and floor members owing to the high air tightness of a magnetic shielding member, depositing a vinyl sheet to both sides of a wire-gauze and unifying them as one body. CONSTITUTION:A structural frame is constituted of a metal pole 5 and a beam 6, and there are set up a wall member 7, a floor member 8 and a ceiling member 9. An aluminum plate is used for the ceiling member 9, and a magnetic shielding member 1, depositing each of vinyl sheets 3, 3 to both sides of a wire-gauze 2 and unifying them as one body, is used for these wall and floor members 7, 8, respectively, and an air cleaner 11 is installed in a specified spot of the wall member 7. An in-and-out pressure differential is maintained in the shape of the positive pressure owning to each high airtightness of the wall member 7 and the floor member 8 covered whole the surface with these vinyl sheets 3. During operation of the air cleaner 11, contaminated air is discharged to the outside from a part of a sheet damper 15, and at time of suspension of its operation, this sheet damper 15 comes to a state of being closed, keeping its airtightness. With this constitution, any fear of contamination due to the penetration of outside air is eliminable and, what is more, the extent of cleanliness for inside air is maintainable.
Patent JP-S5217208-A (JP)
Title: Rotor type oil vacuum pump
Inventor: UKON YASUKI
IPC: F04C29/00
Filed: 1975-07-31
Abstract: PURPOSE: A rotor type vacuum pump wherein a pair of vanes are coupled by a connecting rod which can be slided in the groove along a diameter of the rotor. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S62249867-A (JP)
Title: Winding reel for printing ribbon
Inventor: SUZUKI TAKATOSHI
IPC: B65H75/12
Filed: 1986-04-21
Abstract: PURPOSE:To allow a flange section to be reused by making the flange section and core section of a winding reel for a printing ribbon removable. CONSTITUTION:A core section 2 is made removable from a flange section 1. At the time of winding a ribbon, the core section 2 is fitted to the flange section 1 and is integrally rotated to wind the ribbon. When the used ribbon is to be replaced and discarded, the ribbon can be extracted together with the core section and easily discarded, and the flange section can be reused.
Patent JP-S59206332-A (JP)
Inventor: RICHIYAADO OOGASUTO MIYUURAA
IPC: C07C69/88
Filed: 1984-05-09
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H05296658-A (JP)
Title: Method and apparatus for drying high precision parts
Inventor: FUJII YUICHI
IPC: F26B21/00
Filed: 1992-04-13
Abstract: PURPOSE:To realize a fast drying without leaving any stain marks and the like by a method wherein an injection member for blowing hot air at a predetermined air speed is arranged in such a manner that its displacement can be freely set, a high precision component arranged within a drying chamber is partially and selectively dried and an entire high precision component having liquid substance adhered thereto is dried. CONSTITUTION:A drying device 1 is comprised of a nozzle 10 acting as a hot air injection member and a basket 20 acting as a precision component holder. These nozzle 10 and basket 20 are arranged within a drying chamber of which pressure is reduced and of which gas is discharged. The nozzle 10 is formed with a hot air injection hole 10a at its lower end hot air 40 of an air speed of higher than 5m/s having a certain orientation is blown from the hot air injection hole 10a while the nozzle 10 is being reciprocated in a horizontal direction of an arrow A, thereby the high precision component within the basket is partially and selectively dried and the entire precision component is dried. Liquid droplets adhered to the high precision component is blown off by injecting hot air of predetermined speed and then the drying time can be shortened and occurrence of stain marks can be prevented.
Patent JP-H01268448-A (JP)
Title: Built-up structure of permanent magnet type pulse motor
Inventor: IKETANI SADAO
IPC: H02K37/14
Filed: 1988-04-15
Abstract: PURPOSE:To manufacture an apparatus with a high accuracy by welding a bearing-receiving flange to an outer stator while correcting the deviation of a shaft center caused in assembling of a motor. CONSTITUTION:The builtup structure of a motor is equipped with an outer stator 1, an inner stator 2, a rotor assembly 3, a coil assembly 4, and a bearing- receiving flange 5 for regulating a shaft center. Said outer and inner stators 1, 2 respectively have many comb-shaped tooth poles 1a, 2a, and said respective tooth poles 1a, 2a are caused to face each other and assembled so that respective pole teeth are positioned between each other and said coil assembly 4 is provided in the space between them. Each outer stator 1 is press-fitted to the outer periphery of each facing inner stator 2, and the output shaft 3a of said rotor assembly 3 is borne by bearings 5a, 6a of said flanges 5, 6. After press-fitting of said stator, while the perpendicularity between said output shaft 3a and flange face is kept by a shaft-center regulating jig, the bearing 5a of said bearing-receiving flange 5 is fitted to the output shaft 3a and fastened to the outer face of said outer stator 1 in contact with said flange 5.
Patent JP-S5617093-A (JP)
Title: Semiconductor laser
Inventor: SAKUMA ISAMU
IPC: H01S5/22
Filed: 1979-07-20
Abstract: PURPOSE:To facilitate the oscillation of a fundamental mode and to turn out a high power by performing a mesa etching to the depth penetrating an active layer of a four-layer structure section  having a light guiding layer and a carrier confinement layer. CONSTITUTION:A positive current is applied to a P-type electrode, a negative current is applied  to an N-type electrode, a carrier is injected into an active layer 14 and a luminescence is obtained  by recombination. The injected carrier is confined by the semiconductor layers 13 and 15 located  in the vicinity of the active layer. When a gain surpasses a loss with a sufficient application of current, a laser beam is generated from the active layer 14. This beam oozes out to a beam guide  layer 13 and is guided by a beam confinement layer 12 having a low refractive index and a beam- carrier confinement layer 15. As the thickness of a central part 20 of a guide layer 13 differs from  that of its outside, the lateral refractive index distribution becomes larger as compared with the  central part. In other words, it means that a beam waveguide mechanism is fabricated in a luminous region and the fundamental mode confined within said region is oscillated to the lateral direction, too. The fact that the lateral direction of the active layer has a mesa etching in a striped form shows that the diffusion of the carrier is limited within the mesa-type protruded section only.
Patent JP-H09253768-A (JP)
Title: Press device
Inventor: ANPO NORIYUKI
IPC: B21D37/04
Filed: 1996-03-25
Abstract: PROBLEM TO BE SOLVED: To miniaturize a press machine and to reduce the cost of production in a press device on which a die can be changed. SOLUTION: In a press machine body, a crown 2 fixed with a pressing cylinder 6 in a vertical axial direction is fixed with side posts 20 above a base stand 1, a lower die 8 and guide post 30 set in a vertical axial direction are fixed on a bed plate 8a, an upper die 9 corresponding to the lower die is fixed to a ram 4 guided freely lifatably with the guide post 30, and a joining means 44 to connect or separate the pressing cylinder 6 to or from the ram 4 is provided on the ram 4. By this constitution, a changeable press die unit can be set on the base stand 1 of the press machine body.
Patent JP-S6259264-A (JP)
Inventor: AASAA DEII BURIYUUWAA
IPC: C07D/
Filed: 1986-04-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5218325-A (JP)
Title: Method of forming photosensitive material using carotenoid
Inventor: HOSHINO HIROYUKI
IPC: G03G5/00
Filed: 1975-08-01
Abstract: PURPOSE: To form a highly photosensitive material suitable for practical use and free from environmental pollution, by melting a carotenoid with heating under vacuum or an atmosphere of an inert gas without its decomposition. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S5318948-A (JP)
Title: Manufacture of color picture tube fluorescent screen
Inventor: ISHII MAKOTO
IPC: H01J9/227
Filed: 1976-08-06
Abstract: PURPOSE: To obtain a fluorescent screen of excellent white color uniformity for the one-unit exposure unit system by shifting the same light source at the same time by correcting the illuminance distribution of three-color exposure using the same light volume correction filter. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-2000236877-A (JP)
Title: Substance for precision administration
Inventor: BABA TOSHIYUKI
IPC: C12N15/09
Filed: 1999-02-23
Abstract: PROBLEM TO BE SOLVED: To obtain a composition which contains a stable human type substance having no difference between lots as a base and is used as a substance, or the like, for precision administration having excellent stability and peculiarity by including a recombinant human serum albumin prepared by gene recombinant technique. SOLUTION: By dissolving a recombinant human serum albumin prepared by gene recombinant technique into 10 mM Tris buffer solution(pH 7.2) containing 0.15 M sodium chloride so as to be 5 wt.% to prepare a recombinant human albumin base and adding a human being or animal-derived enzyme, protein or, the like to, this base, the objective composition, which contains a stable human type substance having no difference between lots as a base and is useful as a substance for precision administration having excellent stability and peculiarity, a standard substance or the like, is obtained.
Patent JP-S60236602-A (JP)
Inventor: KUZE KAZUKI
IPC: A44B19/60
Filed: 1984-05-10
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H03290378-A (JP)
Title: Production of joined product of copper plate and ceramic substrate
Inventor: KANEHARA NAOYUKI
IPC: B23K20/00
Filed: 1990-04-09
Abstract: PURPOSE:To obtain a joined product having excellent bonding strength with a simple process to enable easy control of atmosphere by reacting Cu2O particles formed by oxygen in copper in heating stage with SiO2 in a ceramic substrate at a specific temperature. CONSTITUTION:A copper plate having an oxygen concentration of >=50ppm is placed on a ceramic substrate containing >=0.5% of SiO2. The assembly is heat-treated at <1060 deg.C in an inert gas atmosphere (preferably in an oxygen- containing atmosphere which does not form cupric oxide and cuprous oxide on the surface of copper plate) and the temperature is raised while forming Cu2O particles by utilizing the oxygen in the copper plate. The SiO2 in the ceramic substrate is made to react with the Cu2O in the copper plate at >=1060 deg.C and <1065 deg.C to effect the direct bonding of the copper plate to the ceramic substrate. The pretreatment of the copper pair by preparatory oxidation can be omitted and excellent joined products can be produced in large quantities.
Patent JP-H02272895-A (JP)
Title: Video signal processing circuit
Inventor: NOJI SHOZO
IPC: H04N9/78
Filed: 1989-04-13
Abstract: PURPOSE:To make a movement signal into a video by selectively outputting a luminance signal to be the output of one side of a YC separating circuit and the movement signal to be the output of a movement detecting circuit by means of a selecting circuit. CONSTITUTION:A video signal 101 is separated into a chrominance signal 110 and a luminance signal 111 by a YC separating circuit 102. On the other hand, a movement detecting circuit 103 detects the hourly change of a signal in one frame or respective points in one field and replaces the video signal 101 at such a point with a signal 112. When a selector 106 is set at the side of a terminal 108 by a switching signal 109, since the movement signal 112 is sent as an output 15 to the video processing system of a following stage, a movement video can be projected on a monitor projecting only the luminance signal 111 convectionally. Thus, since the condition of the movement signal can be observed from the movement video, the circuit is effective in the case of, for example, evaluating a still image, etc.
Patent JP-H01267375-A (JP)
Title: Vibrator compressor
Inventor: TAKASU SHUHEI
IPC: F04B35/04
Filed: 1988-04-18
Abstract: PURPOSE:To provide a light and small compressor which is capable of compressing at a high speed, by providing a inflow port vibrator to open and close the flow passage of an inflow part, the vibrator of a pressurizing part to vary the volume of the flow passage of the pressurizing part into vibration, and the vibrator of a delivery port to open and close the flow passage of a delivery part. CONSTITUTION:Three sets of two-in-a-set electrostriction vibrators having sandwich structure in which both sides of an electrostriction material 3 are nipped by an insulating material 4, an electrode 5, and a resilient insulating material 6, are contained in series in a container 1 having inlet and outlet at end parts on both sides in an axial direction and provided at an outlet with a sluice valve 2. Each sets of the electristriction vibrators are positioned facing each other with a gap therebetween reduced to zero so that they are adhered to each other during stretch thereof, and three oscillators 7 are connected to each set of electrodes. A voltage is applied, in order, on an electrostriction vibrator 3a on the inlet side, an electrostriction vibrator 3b on the central part, and an electrostriction vibrator 3c on the outlet side to orderly expand the vibrators and contract them in the same order. This constitution compresses gas introduced through an inlet and delivers it through an outlet.
Patent JP-H04302854-A (JP)
Title: Disk player
Inventor: TAKAMATSU RYOJI
IPC: G11B17/04
Filed: 1991-03-29
Abstract: PURPOSE:To keep a chassis equipped with a disk reproducing part in a fixing state to an outer case body at the time of loading and unloading a disk cartridge and to keep the same in a floating state at the time of reproducing. CONSTITUTION:A cartridge loading part 5 is formed, and a mechanical chassis 2 equipped with a moving chassis 9 to be mounted with a disk reproducing device 7 and a disk drawing mechanism 8 is supported under the vibration-proof state gainst an outer case 1. Then, a holding mechanism 80 is provided between the mechanical chassis 2 and the outer case 1. This holding mechanism 80 is operated by interlocking with a chucking operation.
Patent JP-S5224397-A (JP)
Title: Method of manufacturing dial plates or name plates
Inventor: YOHANESU UINTA
IPC: B41F17/00
Filed: 1976-08-05
Abstract: In order to produce a dial which is arranged within an enclosed instrument, the dial is inscribed by local burning or evaporation of a layer of surface coating applied to the dial with the aid of a laser beam passing through a transparent part of the instrument. This is simple to execute and simultaneously offers the guarantee that the close tolerances relating to the layer thickness of the surface coating application for the inscription procedure can reliably be maintained, the dials being dry-punched from an anodised aluminium sheet and the layer of surface coating for the subsequent inscription being applied to the anodised layer of the aluminium sheet with the aid of a printing process, especially the Tampoprint process, in the form of a colour bar.
Patent JP-S59219737-A (JP)
Title: Picture image recording device
Inventor: MAEDA MASATOSHI
IPC: G03B17/50
Filed: 1983-05-27
Abstract: PURPOSE:To obtain a highly accurate color hard copy quickly, by providing a diffusion transfer photosensitive material, an exposure means which exposes and scans the diffusion transfer photosensitive material with three primary colors of blue, green, and red which are obtained by resolving an original picture, and the processing section of the exposure means. CONSTITUTION:The tube face 11a of an optical fiber tube 11 is covered with a blue, green, and red color filters 11b, 11c, and 11d under a banded condition and widths of the filters 11b-11d are set to, for example, 100mu. A deflection coil 12 is fitted to the optical fiber tube 11 and a film 13 made of a diffusion transfer photosensitive material is attracted to a carrier drum 14 and sent from a film stocker 15 to a processing section 16 through an area near to the optical fiber tube 11, which is an exposure section. The processing section 16 is a section making development and transfer of the film 13 and is composed of a developing tank 18 which contains a developer 17 and pressing rollers 19.
Patent JP-H1031108-A (JP)
Title: Diffraction grating pattern
Inventor: TAKAHASHI SUSUMU
IPC: G02B5/18
Filed: 1997-04-11
Abstract: PROBLEM TO BE SOLVED: To form all dots under the same conditions without requiring exchange of masks for each dot pattern when dot comprising diffraction gratings are formed and to simplify the pattern forming process by forming all dots in the same shape and same size. SOLUTION: This diffraction grating pattern is produced by arranging plural numbers of minute dots each is composed of a diffraction pattern on a substrate surface by changing at least one of the spacial frequency of the diffraction gratings, direction of the gratings, pitches of dots and arrangement of dots. In this pattern, all dots are formed in the same shape and same size. By properly changing the spacial frequency, direction or curvature of the diffraction gratings in the dots, a diffraction grating pattern having various expressions can be obtd. The diffraction grating pattern having various expressions can be obtd. by directly drawing diffraction gratings by using an electron beam exposure device. The electron beam exposure device is composed of an electron gun 50, alignment 52, blanker 54, etc.
Patent JP-S5520459-A (JP)
Title: Electronic watch
Inventor: SHIMAKAWA JIYOUJI
IPC: H01L41/00
Filed: 1978-08-01
Abstract: PURPOSE: To obtain an electronic watch where battery exchange is needless, by using a generator utilizing a piezo-electric morph and a secondary battery.  
     CONSTITUTION: A piezo-electric morph is utilized as generator 19 of electronic watch 18. For example, when a user carries a wrist watch with him, the piezo- electric morph in generator 19 can be bent because the part of chain 20 receives a bending displacement which changes always, and the piezo-electric morph can be made into an AC generator. Otherwise, the piezo-electric morph in the generator can be arranged in not only the chain but also the reverse side of the watch main body so that piezo-electric morph may receive the bending movement. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01265108-A (JP)
Title: Optical displacement measuring instrument
Inventor: TAKADA YUJI
IPC: G01C3/00
Filed: 1988-04-15
Abstract: PURPOSE:To digitize a distance measurement signal without using any dividing circuit by calculating ratio of the sum and difference between two signals by an A/D converting circuit at the time of measuring deviation in the distance to a body to be detected in a detection area according to the output of a light receiving means. CONSTITUTION:A couple of position signals IA and IB corresponding to a position of a light convergence spot S which is arranged on the light convergence surface of an optical system 3 for receiving light and move within the light convergence surface corresponding to the distance l to the body X to be detected are outputted 4. The ratio of the 1st signal (IA+IB) obtained by adding the couple of position signals IA and IB and the 2nd signal (IA-IB) generated by subtraction is calculated by an A/D converting circuit which inputs the 1st signal (IA+IB) as a reference voltage input signal Vref=k(IA+IB) and the 2nd signal (IA-IB) as an analog input signal Vin to obtain a distance measurement signal L0 corresponding to the deviation DELTAl in the distance l to the body X to be detected.
Patent JP-S5228282-A (JP)
Title: X-ray generator
Inventor: DOI YASUTAKA
IPC: H05G1/32
Filed: 1975-07-31
Abstract: PURPOSE: Maintain X-ray tube voltage constant irrespective of power variation or X-ray the tube current fluctuation by controlling a variable impedance element which switches by being connected to the primary side of high voltage power transformer. 
     COPYRIGHT: (C)1977,JPO&Japio